Grade 9 Worksheets

Learning Objectives

• Decide whether a statement describes something only real, only AI-made, or both
• Apply the Six Tells checklist to an image or clip and give a reason
• Name the right next step when a message or image feels wrong

Learning Objectives

• Describe what a deepfake is in one sentence and name two ways it is used against young people
• Apply the Six Tells checklist to an image or clip and give a reasoned judgement, not a guess
• Explain why "it isn’t real" does not mean "it isn’t harmful"+ Show more

Learning Objectives

• Explain how matter cycles through ecosystems while energy flows and is lost as heat.
• Describe key steps in the carbon, nitrogen, and phosphorus cycles (respiration, decomposition, nutrient uptake).
• Evaluate the roles of decomposers and nutrient pathways connecting organisms to air, water, and soil.

Learning Objectives

• Explain how chemical elements like carbon, nitrogen, and phosphorus cycle between organisms and the physical environment.
• Describe how respiration, decomposition, and nutrient uptake connect living things to air, water, and soil.
• Distinguish matter cycling from energy flow in trophic transfers.

Learning Objectives

• Explain Newton’s Third Law using the idea of action–reaction force pairs that act on different objects.
• Identify whether two forces form a Third Law pair by checking the interacting objects and direction.
• Use Third Law pairs to analyze everyday situations such as rockets, walking, and pushing against walls.

Learning Objectives

• Describe the main stages of stellar evolution from star formation to end states.
• Interpret Hertzsprung-Russell diagrams and spectral classifications of stars.
• Explain processes such as supernovae and nucleosynthesis that enrich the interstellar medium.+ Show more

Learning Objectives

• Understand the concept of forces and how they affect motion
• Identify different types of forces such as contact and field forces
• Interpret force diagrams and free-body diagrams+ Show more

Learning Objectives

• Describe the formation processes of the solar system including accretion and differentiation.
• Identify key evidence supporting planetary origin theories such as meteorite composition and isotopic dating.
• Explain the differences between inner rocky planets and outer gas giants based on their formation and composition.+ Show more

Learning Objectives

• Understand the mathematical relationships governing gravitational and electrostatic forces.
• Apply inverse-square law formulas to calculate magnitudes of forces between objects.
• Determine the direction of forces using vector representation and Coulomb's and Newton's laws.+ Show more

Learning Objectives

• Identify observable evidence that indicates a chemical reaction is forming new substances
• Explain how reaction evidence connects to atom rearrangement and bonding changes
• Distinguish chemical changes from physical changes using specific clues such as gas, precipitate, color, temperature, and odor

Learning Objectives

• Explain how accretion builds planetesimals within a rotating disk
• Describe how differentiation separates materials within growing planetary bodies
• Interpret meteorite composition as evidence of early solar system conditions+ Show more

Learning Objectives

• Use academic conversation moves to build on others’ ideas during a discussion about a shared text or topic.
• Apply discussion roles (sharing, questioning, clarifying) to strengthen group understanding.
• Demonstrate responsiveness by referencing specific comments and explaining how ideas connect.

Learning Objectives

• Use academic conversation stems to build on others’ ideas by referring to evidence and clarifying meaning.
• Identify and apply effective discussion roles (facilitator, questioner, clarifier) to support productive group understanding.
• Evaluate whether a discussion move shows responsiveness, respect, and shared purpose.

Learning Objectives

• Understand the purpose and importance of academic conversations in a collaborative setting.
• Identify key components of purposeful discussions, including building on ideas and respectful listening.
• Develop skills to participate effectively in group discussions by recognizing roles and responding appropriately.

Learning Objectives

• Explain how chemical elements (carbon, nitrogen, and phosphorus) cycle through ecosystems between living things and the physical environment.
• Describe how processes like respiration, decomposition, and nutrient uptake connect trophic levels.
• Distinguish between how energy flows through ecosystems and how matter cycles in ecosystems.

Learning Objectives

• Explain how limiting factors (resources, predation, disease, and environment) constrain population growth.
• Describe the relationship between limiting factors and carrying capacity.
• Analyze how changes in limiting factors can shift community interactions and biodiversity.

Learning Objectives

• Explain how limiting factors control population growth and help determine carrying capacity in an ecosystem.
• Distinguish between density-dependent and density-independent limiting factors and give examples of each.
• Analyze how limiting factors influence species interactions, survival, and biodiversity over time.

Learning Objectives

• Explain how limiting factors constrain population growth in an ecosystem.
• Differentiate between resource availability, predation, disease, and environmental conditions as limiting factors.
• Describe how changes in limiting factors can affect community interactions and biodiversity over time.

Learning Objectives

• Explain how limiting factors affect population growth and carrying capacity
• Differentiate biotic and abiotic limiting factors in an ecosystem
• Analyze how limiting factors influence species interactions and biodiversity+ Show more

Learning Objectives

• Explain how greenhouse gases affect Earth’s energy flow by absorbing and re-emitting infrared radiation.
• Describe how energy balance depends on absorption, re-emission, and the altitude where radiation escapes to space.
• Use greenhouse-effect concepts to predict how changes in greenhouse gas concentrations can change surface temperature.

Learning Objectives

• Identify various limiting factors in ecosystems.
• Explain how resource availability influences population size.
• Understand the role of predation, disease, and environmental conditions as limiting factors.+ Show more

Learning Objectives

• Describe the main stages of stellar evolution from star formation to terminal outcomes.
• Explain the role of Hertzsprung-Russell diagrams and spectral classification in understanding stars.
• Identify differences in stellar lifecycles based on mass and other properties.+ Show more

Learning Objectives

• Understand the inverse-square relationship in gravitational and electrostatic forces.
• Use quantitative formulas to calculate force magnitudes and directions.
• Apply force concepts to planetary attraction, charged particles, and scaled systems.+ Show more

Learning Objectives

• Understand the relationship between net external forces and changes in motion.
• Interpret force diagrams and free-body diagrams of objects in different scenarios.
• Apply Newton's second law quantitatively to calculate acceleration.+ Show more

Learning Objectives

• Understand the water-budget framework and how it quantifies surface and subsurface water flows.
• Interpret discharge hydrographs and groundwater level records to assess streamflow variability and aquifer sustainability.
• Relate precipitation inputs, evapotranspiration losses, and human withdrawals to changes in hydrologic fluxes.+ Show more

Learning Objectives

• Use accountable talk moves (ask questions, cite evidence, clarify meanings) during academic discussions.
• Respond to others by building on ideas rather than repeating them.
• Connect multiple perspectives to a shared purpose during a debate-like exchange.+ Show more

Learning Objectives

• Explain how greenhouse gases trap heat in Earth's atmosphere.
• Describe the role of infrared radiation in Earth's energy balance.
• Analyze how variations in greenhouse gas concentrations affect global temperatures.

Learning Objectives

• Explain how matter cycles through ecosystems using examples of carbon, nitrogen, and phosphorus.
• Describe how respiration, decomposition, and nutrient uptake connect organisms to air, water, and soil.
• Compare the movement of matter with the movement of energy in trophic transfers.

Learning Objectives

• Identify different types of forces such as contact forces and field forces.
• Understand how forces influence motion and acceleration.
• Analyze force diagrams and free-body diagrams to determine net forces.+ Show more

Learning Objectives

• Explain Newton’s Third Law using the idea of action–reaction force pairs
• Identify the two interacting objects and determine force directions in third-law situations
• Distinguish why action–reaction forces do not cancel on a single body+ Show more

Learning Objectives

• Translate contextual statements about input and output into correct function notation (e.g., f(a)=b).
• Interpret given function values to explain what the model says about inputs and outputs.
• Evaluate function expressions at specified inputs to find outputs.

Learning Objectives

• Explain how the protoplanetary disk contributed to planetary formation.
• Identify key evidence supporting planetary origins, such as meteorites and isotopic dating.
• Describe differences between inner rocky planets and outer gas giants based on formation processes.

Learning Objectives

• Learn how to use surrounding sentences to infer the meaning of unfamiliar words
• Differentiate between denotation (literal meaning) and connotation (implied meaning)
• Practice identifying context clues in various texts to clarify word meanings+ Show more

Learning Objectives

• Identify different types of electromagnetic waves and their order in the spectrum
• Understand the relationship between frequency, wavelength, and energy of electromagnetic waves
• Recognize characteristic phenomena such as atomic emission/absorption lines and spectral attenuation+ Show more

Learning Objectives

• Understand the inverse-square dependence of gravitational and electrostatic forces.
• Apply quantitative formulas to calculate magnitudes and directions of forces between masses and charges.
• Explain the approximations used for point masses and point charges in force calculations.+ Show more

Learning Objectives

• Understand key molecular signaling pathways that regulate gene expression and protein activity.
• Identify canonical mechanisms such as signal transduction, receptor-ligand binding, and hormonal signaling.
• Interpret the effects of molecular perturbations like mutations or pharmacological inhibition on cellular functions.+ Show more

Learning Objectives

• Describe the main stages of stellar evolution from star formation to end states.
• Explain the significance of Hertzsprung-Russell diagrams and spectral classification in understanding stars.
• Identify different stellar end states such as white dwarfs, neutron stars, and black holes.+ Show more

Learning Objectives

• Use a water-budget framework to relate precipitation, evapotranspiration, streamflow, infiltration, and storage changes.
• Interpret discharge hydrographs to connect surface runoff timing to catchment and human impacts.
• Explain how groundwater-level records indicate subsurface fluxes and aquifer sustainability.+ Show more

Learning Objectives

• Understand the spectrum of electromagnetic radiation and its relationship with photon energy.
• Explain how different types of electromagnetic waves interact with matter, including phenomena like atomic emission and absorption.
• Apply Planck’s relation to compare energies and wavelengths across the electromagnetic spectrum.+ Show more

Learning Objectives

• Understand the wave and photon descriptions of electromagnetic radiation.
• Relate frequency and wavelength to photon energy and interaction with matter.
• Explain phenomena such as atomic emission and absorption lines, signal transmission, and spectral attenuation.+ Show more

Learning Objectives

• Understand and quantify surface and subsurface water flows using water-budget frameworks
• Relate precipitation, evapotranspiration, and human withdrawals to streamflow and aquifer health
• Analyze the impact of altered hydrologic fluxes on geomorphic processes+ Show more

Learning Objectives

• Explain the wave and photon models of electromagnetic radiation and their relationship to frequency and energy.
• Identify characteristic phenomena such as atomic emission and absorption lines, and relate them to energy–frequency relationships.
• Evaluate how wavelength influences transmission, scattering, and detector response across the electromagnetic spectrum.+ Show more

Learning Objectives

• Explain how matter (carbon, nitrogen, phosphorus) moves through ecosystems using cycles.
• Describe how decomposition and nutrient uptake return elements to the physical environment.
• Differentiate between the flow of energy and the cycling of matter in trophic transfers.

Learning Objectives

• Explain how greenhouse gases affect the flow of energy in Earth’s atmosphere by absorbing and re-emitting infrared radiation
• Describe how energy balance depends on absorption, re-emission, and the altitude where infrared escapes to space
• Predict how changes in greenhouse gas concentrations can change the amount of energy retained by the Earth system

Learning Objectives

• Interpret paleoclimate evidence from ice cores, tree rings, marine sediments, and speleothems.
• Understand proxy indicators such as isotopic ratios, growth increments, and microfossil assemblages.
• Relate proxy records to climate patterns and reconstruct past climate variability.+ Show more

Learning Objectives

• Describe how net external forces influence the motion of objects.
• Explain the differences between contact and field forces using examples.
• Apply Newton's second law to analyze how varying forces affect acceleration.+ Show more

Learning Objectives

• Explain how net external force determines changes in motion using Newton’s Second Law.
• Represent forces on objects with free-body reasoning and conceptual force diagrams.
• Calculate net force and predict acceleration for contact and field forces in simple systems.+ Show more

Learning Objectives

• Understand how external forces influence the motion of objects.
• Interpret force diagrams and apply Newton's Second Law to various scenarios.
• Describe the relationship between net force and acceleration.+ Show more